Defending Australian Baseball League champions Perth Heat squared up their post-season series against the Melbourne Aces with a 9-5 win on Friday night.

Mitch Graham had three hits including a home run and four RBI for the Heat, with the best-of-five series now level a 1-1.

Adelaide Bite also pulled level in their series against the Sydney Blue Sox, with an 8-3 victory to bounce back from their opening loss.